Reed.



E. M. TERRYBERRY.

REED.

APPLICATION FILED APR. 4, 1912. 1,070,206. Patented Aug. 12,1913.

.,'.1, ljfli i v d I I a 0 n 0 v i 14 1 1J1 15 11111 1 1 1 1 1 4 1 if v71- 1 11111 v 5; 1 1 1114 J J j I I I f WITNESSES: J 4 [NVE/VTOR 11 1111 M l %M I tion of the weft threads in the fabric.

'UNTTLQD @TATES PATENT @FFTQFQ.

EDWARD 1VL TERRYBERRY, OF PHILADELPHIA, PENNSYLVANIA.

REED.

of alternate dents to each side of such central portion offset withrespect to each other and arranged in staggered relation, all as morefully hereinafter set forth and as claimed.

The reed of the present invention is particularly adapted for highslayed work, or for weaving fabrics of fine texture. In the weaving ofsuch fabrics the warp threads passing through the reed as it vibratesare subjected to an excessive amount of friction, with the result thatthe threads tend to fray or lint up in small knots, and sometimes break.In the old straight dent reed where the dents are arranged parallel toeach other, this friction is a source of continual trouble. Attemptshave been made to overcome this difliculty by the use of reeds made upof straight dents crossing near their center, and also by the use ofalternate dents specially machined to present a central even line forbeating the fabric; but such reeds are expensive to manufacture, andrequire a special form of reed frame; also with the central beatingline, any misadjustment of the fabric, relative to this cen tral line,result-s in an imperfect assimila- C- cording to the present invention,these disadvantages are obviated and a reed pro-. duced simple inconstruction and inexpensive of manufacture.

In the accompanying drawings, Figure 1 shows a front view of thepreferred embodiment of the invention; Fig. 2 is an end view of Fig. 1;Fig. 3 shows the individual dents of which the reed of Figs. 1 and 2 isalternately made up; Fig. 4 shows a modified form of ofiset dent, bothseparately and as combined with a straight dent; Fig. 5 shows stillanother modified form of the Specification of Letters Patent.

Application filed April 4, 1912.

Patented Aug. 12,1913.

Serial No. 688,393.

offset dent; Fig. 6 shows the individual dents of Fig. 5; Fig. 7 shows amodification in the construction of the individual offset dents; Figs. 8and 9 show still further em bodiments of the invention; Fig. 10 is asection on an enlarged scale taken on the line 1010, Fig. 2; and Fig.11, a section on an enlarged scale taken on the line 1111, Fig. 8.

The reed of the present invention is made up of dents of uniform width,and is shown in Figs. 1 to 3 and 10, as made up alternately of straightdents 4, and offset dents 3, these dents being of uniform width andtheir ends being fastened in the reed frames 1 and 2 in any suitablemanner. Since the dents are of uniform width, their ends can be broughttogether the same as in the old straight dent reed, and hence thepresent reed can be substituted for the old straight dent reed, withoutmodifying the structure of the loom in which the substitution is made.The dents 3 are provided with central portions, 5, in the same plane asthe ends of the dents and as the straight dents 4, and between thecentral portions 5 and the ends, the dents are offset slightly more thanthe width of the individual dents. In the form shown in Figs. 1 to 3 thecentral portions 5 extend about one quarter of the length of the reed,and are arranged so that the offset portion below this central portionis also about one quarter of the length of the reed, and the offsetportion above this central portion about one half of said length. Theposition of this central portion as well as the length can be varied asdesired. In Fig. 4 it is shown as situated approximately in the centerof the reed, the structure of the alternate dents 4 and 6 of Fig. 4,being otherwise similar to those of Figs. 1 to 3.

Fig. 5 shows a modification in which the alternate dents 7 and 9 ofuniform width are arranged with single offset portions 8 and 10 whichgive a. central portion 5 in the same plane, and an offset arrangementto each side of said central portion similar in effect to that of Figs.1 to 4. These dents 7 and 9 may or may not be duplicates of each other.In the Fig. 6 they are, however, shown as duplicates, the ends of thedents being merely reversed in making up the reed. Obviously the widthof the central portion 5 can be varied in this modification the same aswith the other forms of the invention already described.

Fig. 7 shows a modification in which the bends or offsets 12 are roundedmore than in the preceding figures. This feature can be controlled asdesired.

In Fig. 8 the offset portions 13 of the dents are offset less than thewidth of the individual dents. The clearance provided in this case isless than in the other embodiments shown, but in this embodiment alsothe friction is less than in the old straight dent reed, for the arpthreads do not come in contact with the edges of the dents at the sametime, but. in succession, thus minimizing the usual shearing action ofthe straigl'it dent reeds. A section of the reed thus constructed isshown on an enlarged scale in Fig. 11.

In Fig. 9 the reed is made up alternately of dents 14 having narrowcentral offset portions 16, and dents having wider central offsetportions 15, the combined effect being similar to that alreadydescribed.

The wide range of adaptability of the present invention is obvious tothose skilled in the art from the foregoing description, the locationand width of the central even portions being controlled as desired.

In the embodiments of the invention shown in Figs. 1 to 6 and 9 to 10,the offset portions of the dent are offset more than the width of thedents, and can be offset more or less as desired, the effectiveclearance being determined by the amount of this ofl:'

set. The friction of the warp threads while )assing through these offsetportions of the reed is correspondingly reduced, and tend eney towardfraying, excessive rubbing,

' and breaking minimized. AS a result, softer warp yarns can be used,and yarns with less sizing than heretofore necessary. Also a closerslayed fabric can be produced.

The provision of a central portion of ap preciable and variablewidth isa marked improvement over known reeds having offset dents provided witha central line for packing-the filling. The reed does not have to be socarefully adjusted in the loom with respect to the fabric, but uniformdriving of the filling is nevertheless assured the same as in the oldstraight dent reeds.

The straight dents used in the reed of the present invention may be theold st 'aight dents of the same width as used in the straight dentreeds. The offset dents can be made from wire or strips of the samewidth, the offset portions being offset at the desired places and forthe desired amount.

Variations and modifications can be made in the invention abovedescribed without departing from the spirit and scope of the inventionas set forth in the following claims.

I claim:

1. A reed made up of an upper and a lower reed frai'ne, dents of uniformwidth having their end portions in said upper and lower reed framesrespectively, and also hav ing central or intermediate portions in thesame plane, and with the portions of altern'a te dents to each side ofsaid central portion offset and arranged in staggered relation.

2. A reed made up of an upper and a lower reed frame, dents of uniformwidth having their end portions in said upper and lower reed framesrespectively, and also having central or intermediate portions in thesame plane, and with the portions of alternate dents to each side ofsaid central portion offset a distance greater than the width of thedents, and arranged in staggered relation.

3. A reed made alternately of straight dents, and of offset dents withend and central portions in the same plane as the straight dents andwith intermediate offset bUl'tlOl'lS.

l. In a reed a dent of uniform width hav ing central and end. portionsarranged in the same plane, and intermediate offset portions offset adistance greater than the width of the dents.

In testimony whereof, I affix my signature in the presence of twosubscribing witnesses.

E. M. TERRYBERRY. lVitnesses:

F. E. Bmnows, FRED Ciuus'rorn.

Gopies of this patent may be obtained for five cents each", byaddressing the Commissioner of Patents.

Washington, D. C.

